How English works
- Adjectives. Opposites
- Adjectives. Comparatives
- Numbers
- Telling the time
- British Money
- Prepositions of place
- There is. There are
- Present Simple Tense
- Present Continuous Tense
- Past Simple Tense
Skills
Resources
- Classroom Expressions
- Sites for Students
- Sites for Teachers
- Media & Portals
- Macmillan Tiger Tracks 6
- ICT Vocabulary
- Language Centers
- Handy Links
Festivals
Organization
Students' works
- Previous School Years
- School Year 2015-2016
Projects
- Our town. Sangüesa
- Important People From History
- The Universe
- The World Of Cinema
- Countries Of The World
Private Zone
Student ResourcesCLIL Zone
Contributions to https://english-primary-3rd-cycle-pupils.wikispaces.com/ are licensed under a Creative Commons Attribution Share-Alike Non-Commercial 3.0 License. 
Portions not contributed by visitors are Copyright 2018 Tangient LLC
TES: The largest network of teachers in the world
Portions not contributed by visitors are Copyright 2018 Tangient LLC
TES: The largest network of teachers in the world
THE SHARK
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.